Different Colored Eyes Day is a day to recognize an eye condition called heterochromia, which is most common in dogs, cats and horses but can occur in humans. People with heterochromia have different colored eyes. The difference in eye color may result from an injury or be a sign of certain diseases, such as Fuch’s heterochromic iridocyclitis, Horner’s syndrome or pigmentary glaucoma, especially if one of your eye’s color changes later in life. (Have your eyes examined if color change occurs!) Babies born with two different colored eyes should undergo an eye examination to make sure the heterochromia isn’t a symptom of a disease or illness.

However, sometimes heterochromia is completely harmless, and you’ll simply get to walk around with an extra unique eye color…or, colors.

Don’t have different colored eyes or know anyone who does? You can also use Different Colored Eyes Day to celebrate eye color diversity. Imagine how boring eyes would be if they were all the same color!

Did You Know…that a variety of celebrities have heterochromia? Such celebrities include actresses Kate Bosworth, Mila Kunis and Jane Seymour. See more celebrities who have different colored eyeshere.